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P1121 Diagnostic Trouble Code Discussion for October 2021

Electronic Throttle Control Actuator Malfunction

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Trouble Ticket Help Requests for DTC P1121
Help Request Posted
1998 Toyota Land Cruiser 4.7L MIL Lamp on VIN: JT3HT05JXW
P1121: ETCS Accelerator Pedal Position Sensor Performance. Car arrived with no pedal response. I physically opened and closed the throttle plate while watching the TPS and it swept smoothly without any glitches. Due to a lack of good information and no data on my scanner for the APP, I replaced it. No change at al...
October 30, 2021